Safdar, Owais. <br/><br/>
General Science and Abality :  For CSS, PMS, PPSC & other Competitive Exams / 
Owais Safdar; Dr. Tahreem Ali. 
 - Lahore:  BSM Printer & Publisher,  2017. 
 - 387p;.  ill;.  28 cm. 
<br/><br/><label>ISBN: </label>547778663217 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General Science .
<br/><br/><label>Dewey Class. No.: </label>500  / GEN- 2017 815066